Spudding shoe



B. T. HOLMAN.

SPUDDING SHOE.

APPLICATION FILED "8.12, 1921.

Patented Mar. 14, 1922 INVEN OK WI TN EsS i/ji/waq f To all whom it 77' 'y PEN N SYLVAN'IL concern:

Be it known-that I, BENJAMIN T. HoL- MAN, a citizen of the United States, and residing in the township ennsylvania. have invented or discovered the new 7 useful. arid Improved Spudding Shoes, of

which the following is a specification,

ly invention consists in a new and im proved spudding shoe.

* In well drilling, until the well is dee enough to permit the use of the walking erk rope by one person, which will 'spudding shoe, will the beam, the operation of the drill'ingtool is accomplished by means of a spudding shoe,

engaging the cable between the bull wheel and the crown pulley, and'connected to a jerk rope attached to the crankof-the band wheel. I

The object which I have in view .is the provision of a spudding shoe which may be Installed on the cable and attached. to the be efliment in operation, which one person may dismount and disconnect, and which in case the jerk rope breaks or loosens from the not fly off the cable to damage of property and lives. enerally speaking 'my improved shoe comprises a head provided with an arcuate grooved bearing the cable, a shank pierced or otherwise provided with means .for attaching the jerk rfipe},I a fixed check on one side, connecting t e pivotally mounted on'the head and adapted to be swung into engagement with and be detachably Connected to the shank, the cable beingincluded between the two cheeks when the shoe is in use. e Other novel featuresof construction and arrangement of parts will appear from the following description. In the accompanying drawings,

Fig. 1 is a perspective of an improved spudding shoe the pivoted cheek beingshowncl embodying the principles of my invention,

osed; Fig.

' 2 is a side elevation of the same, and Fig.

;- the drawings.

3' is a section taken along the line TIL-III inFig.2. '5

The following is a detailed description of A represents vided with an arcuate grooved bearing or V shoe-portion 1 to receive the-drilling cable.

SIPUDDIN G SHOE.

r of Sewickle in the' county of Allegheny and State-of flange 4 which, when the cheek D is into its closed position, as shown in the drawings,' engages and interlocks with a extending over adapted to be engaged by ead and sank, and anopposed cheek- Patented Mar. 14, 1922. Serial no. 444,556. 1 B is the fixed cheek portion rigidly connecting-the head A with the shank C which is provided with an eye or hole 2 for the at-' 'tachment of the jerk rope. The head, fixed cheek and shank tegal casting.

is the other cheekconsisting of a plate which is pivotally connected to the head A as by the bolt 3. The rear edge of the cheek D is provided with an inturned L shaped may be formed of an incomplementarily formed rib 5 on the face of shank C,'said flange and rib being arcuate and concentric with the bolt 3 so that when thecheek is swung out, the flange 4; slides .into engagement with the rib 5, thereby preventing the cheek D from being forced or spread away from the shank, or in other words moved out of parallelism with the fixed cheek'B.

When opened, the cheek D swings in the direction indicated by the arrow in Figs. 1

d 2. v E is a locking latch having a reduced shank bolted in a. cut away portion"6 on the face of the shank C and havingits enlarged head the recess 7 in the face of said shank. The free end of said latch extends in the direction of the closing movement of. the cheek D.

I The head of said latch is enlarged, as at 8 to form a stop against which the recessed corner of the cheek D strikes, thus limiting the closing The under side of the frontportion of said cheek is undercut as at 9 to form at of the cheek a tooth 10 which rides over a shoulder 11 on the latch and seats in the" angular recess 12 between the shoulder 11 an the stop 8, the forward side of the shoulder being bevelled, as 13 to enable the tooth 10 to depress the latch sufiiciently to' engage the tooth 10 with th recess 12.

In practice, the cheek'D'is swung open and the shoe placed on the cable.

The check D is then swung closed, and as it closes, is automatically locked shut against accidental loosenin ,The jerk'rope is then attached turned movement of said cheek. 90

the edge to'the s ank, and the bandw'heel started. 10!; the head of the shoe pro W wardly out of engagement with the tooth 10, whereupon the cheek D may be swung open and the shoe lifted oil the cable.

It is evident that the spudding shoe may be readily installed and removed by one person. It is also evident that in case the jerk rope breaks or becolnes accidentally detached from the spudding shoe, the latter will not fly d the cable, a source of frequent accident in oil and gas well drilling, but will remain on cable, and no injuries result.

The recessing of the corner of the cheek plate and the fact that the end of the stop 8 is short of the outer face of the cheek D prevents the stop 8 from being accidentally depressed to release or unlock the pivoted cheek.

WhatI desire to claim is 1. In a spudding shoe, the combination of a head. an arcuate cable bearing fixedly carried by said head, a check and a shank in rigid relationship, a second cheek pivotally attached to said head and adapted to swing into and out of engagement. with the shank, and means for locking said second named cheek in engagement with said shank.

2. In a spudding shoe, the combination of a heady an arcuate cable bearing fixedly mounted on said head, a check and a shank in rigid relationship, a second cheek pivotally attached to said head and adapted to swing into and out of engagement with the shank, and means whereby said pivoted cheek is automatically locked to said shank. 3. In a spudding shoe, the combination of a head, an arcuate cable bearing fixedly I mounted on said head, a cheek and a shank a head, an arcuate cable bearing ally attached to in rigid relationship, a second cheek pivotally attached to the head and adapted to swing, in parallelism with said first named cheek, into and out of engagement with the shank, and means for locking said second cheek to said shank.

I. In a spudding shoe, the combination of fixedly mounted on said head, a cheek and a shank in rigid relationship, a second cheek pivotallv attached to the head and adapted to swing, in parallellsm with said first named cheek, into and out of engagement with the shank, and automatic means for locking said second cheek to said shank.

5. In a spudding shoe, the combination of a head, an arcuate cable bearing fixedly mounted on said head, a cheek and a shank in rigid relationship, a second cheek pivotthe head and adapted to swing into and out of engagement with the shank, and means whereby saidsecond check is prevented from spreading relative to said first cheek when said second cheek is in engagement with said shank.

6. In a spudding shoe. the-combination of a head, an arcuate cable bearing fixedly mounted on said head, a cheek and a shank 1n rigid relationship, and a second cheek adapted to swing into and out of engagement with said shank. said second cheek and shank being provided with interengaging portions to prevent said second cheek from spreading awayfrom said first cheek.

Signed at Pittsburgh, Pa, this th day of Feby., 1921.

BENJAMIN T. HOLMAN. 

